The park was established in 1996 following successful citizen protests against a proposed hydroelectric power plant at Hainburg.
The Danube acts as a biological corridor, facilitating the migration of diverse flora and fauna between the Alps and the Pannonian Basin.
More than 30 species of mammals and over 100 species of breeding birds reside within the park boundaries.
The ecosystem relies on the 'Lobau' area, which provides a unique aquatic landscape directly adjacent to urban Vienna.
It is one of the few remaining 'free-flowing' river sections of the Danube, meaning it is not restricted by locks or dams for a significant stretch.
Many of the forest zones are classified as 'Au-Urwald' or primeval riparian forest, which is left largely undisturbed by human intervention.
Danube-Auen National Park protects the largest remaining contiguous wetland area in Central Europe along the Danube River. The park stretches 38 kilometers between Vienna and the border with Slovakia, encompassing 9,600 hectares of floodplain ecosystems. It serves as a vital habitat for endangered species, including the European pond turtle and the sea eagle. The landscape is shaped by the dynamic interplay of the river, resulting in periodically flooded alluvial forests and gravel banks. The administrative center is housed in Orth Castle, which features an interactive exhibition on river ecology. The park is managed to preserve the natural hydrological processes of the river rather than through static conservation. Visitors can access a network of marked trails that traverse the protected riparian zones. The area remains one of the few places where the Danube still maintains a natural rhythm of seasonal flooding.
The elevated observation decks overlooking the Danube river branches near the Stopfenreuth region.
Bring high-quality insect repellent, as the wetlands are a primary breeding ground for mosquitoes in the summer months.
Use the bicycle trails that connect Orth an der Donau to the national park boundaries for the most efficient travel between sites.
Visit the 'schlossORTH' National Park Centre first to understand the current water levels and trail accessibility, as some paths flood seasonally.
Attempting to hike off-trail in the deep forest areas during spring thaw or heavy rain, as paths become impassable mud.
The visitor center at Orth Castle follows seasonal operating schedules, generally closing for the winter months.
Stay on marked trails to protect sensitive flora and nesting sites; dogs must be kept on a leash at all times.
